The present invention relates to ground cover sheet materials and to ground cover sheets comprising such materials. The ground cover sheet material absorbs more solar radiation than it reflects in the UV range of about 280-400 nm, and reflects more solar radiation than it either transmits or absorbs in the visible range of about 400-700 nm and near infrared range of about 700-800 nm, and transmits at least part of solar radiation in the range about 800-2500 nm and at least part of solar radiation above about 2500 nm.
